Barn Raising

If a farmer starts a barn raising, they can increase the capacity of a storage building. To have a barn raising, a farmer must get 10 neighbors to help with their barn in 3 days. A storage building can be raised twice. The first time will add 5 to its storage; the second time adds 7 to the storage (making a total addition of 12 extra storage place). You can also pay 10 cash for the next available upgrade and get it immediately.

The total limit of storage capacity is 500 items (this was changed from 200 to 500 after the release of the Storage Cellar). After a farmer reaches 500 items capacity in storage, they cannot increase it any further, no matter how many Barns or Tool Sheds they have.